Standard Ignition KS539 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for Hyundai and Kia

Standard Ignition KS539 is an ignition knock (detonation) sensor built for direct bolt-mount installation and OE-style electrical connection. It is a practical replacement for vehicles that need accurate knock detection to support proper engine timing control.

Compatible With 2021-2024 Hyundai and Kia applications, including Hyundai Tucson, Hyundai Santa Fe, Kia Sportage, and Kia Sorento. The Standard Ignition KS539 uses a 2-terminal blade connection with one female plug-in connector and male terminals for a straightforward sensor replacement.

Key Features

• Part number: KS539
• Ignition knock (detonation) sensor for emission control systems
• Direct attachment method with bolt-mount design
• 1 plug-in connector, female connector gender
• 2 terminals with male blade terminals
• Plastic and metal construction
• OE-style replacement for Hyundai and Kia engine management systems

Detailed Description

Standard Ignition KS539 is designed for vehicles that rely on knock sensor input to help the engine control module monitor detonation and adjust ignition timing. This sensor is a direct-fit style component with a bolt-mount attachment method, making it suitable for service replacement on 2021-2023 Hyundai Santa Fe, 2022-2024 Hyundai Tucson, 2021-2023 Kia Sorento, and 2023-2024 Kia Sportage. The KS539 part number is also useful when cross-checking OE and aftermarket references during diagnosis or repair.

This part cross-references Standard Ignition (e.g., 392502M500, DKS284) for the same application.

What It Helps Address

• Knock sensor fault codes
• Engine pinging or detonation-related drivability concerns
• Reduced ignition timing control from a failed sensor signal
• Check engine light conditions tied to knock sensor performance
• Intermittent engine performance issues related to sensor input

Installation Notes and Tips

Verify connector style, terminal count, and mounting location before installation. The KS539 uses a direct bolt-mount design with a single plug-in connector, so the replacement should match the vehicle’s original sensor interface and mounting point. Inspect the harness and connector for corrosion or damage during service, and confirm the mounting surface is clean before tightening the sensor.

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and KS539 is built with plastic and metal materials to match common OE-style sensor construction. Confirm fitment against the vehicle listing before ordering.